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Finding the Fourth Proportional to 89,292.78, 133,935.93 and 36,007.74

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Solution

The fourth proportional to 89,292.78, 133,935.93 and 36,007.74 is: 54,010.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,292.78 : 133,935.93 = 36,007.74 : x
  2. Step 2: Convert to fraction form
    89,292.78/133,935.93 = 36,007.74/x
  3. Step 3: Cross multiply
    89,292.78x = 133,935.93 × 36,007.74
  4. Step 4: Simplify right side
    89,292.78x = 4,822,730,144.10
  5. Step 5: Solve for x
    x = 4,822,730,144.10/89,292.78
  6. Step 6: Final answer
    x = 54,010.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.